一位年轻的中国女科学家身着制服，在繁华的城市街道上拿着平板电脑，体现了现代科学在城市中的应用 免版税图库摄影 一位年轻的中国女科学家身着制服，在繁华的城市街道上拿着平板电脑，体现了现代科学在城市中的应用
Laboratory glassware with blue liquid in a bright modern science lab setting 图库摄影 laboratory glassware with blue liquid in a bright modern science lab setting
Holographic dna helix structure glowing in modern science laboratory symbolizing genetic engineering research and biotechnology 免版税库存照片 holographic dna helix structure glowing in modern science laboratory symbolizing genetic engineering research and biotechnology
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